48 lines
1.2 KiB
JavaScript
48 lines
1.2 KiB
JavaScript
describe('toBeFalsy', function() {
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it("passes for 'falsy' values", function() {
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const matcher = privateUnderTest.matchers.toBeFalsy();
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let result;
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result = matcher.compare(false);
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expect(result.pass).toBe(true);
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result = matcher.compare(0);
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expect(result.pass).toBe(true);
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result = matcher.compare('');
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expect(result.pass).toBe(true);
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result = matcher.compare(null);
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expect(result.pass).toBe(true);
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result = matcher.compare(undefined);
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expect(result.pass).toBe(true);
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result = matcher.compare(void 0);
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expect(result.pass).toBe(true);
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});
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it("fails for 'truthy' values", function() {
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const matcher = privateUnderTest.matchers.toBeFalsy();
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let result;
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result = matcher.compare(true);
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expect(result.pass).toBe(false);
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result = matcher.compare(1);
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expect(result.pass).toBe(false);
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result = matcher.compare('foo');
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expect(result.pass).toBe(false);
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result = matcher.compare({});
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expect(result.pass).toBe(false);
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result = matcher.compare([]);
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expect(result.pass).toBe(false);
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result = matcher.compare(function() {});
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expect(result.pass).toBe(false);
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});
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});
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